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Finding the Fourth Proportional to 606.20, 836.55 and 357.53

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Solution

The fourth proportional to 606.20, 836.55 and 357.53 is: 493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.20 : 836.55 = 357.53 : x
  2. Step 2: Convert to fraction form
    606.20/836.55 = 357.53/x
  3. Step 3: Cross multiply
    606.20x = 836.55 × 357.53
  4. Step 4: Simplify right side
    606.20x = 299,087.54
  5. Step 5: Solve for x
    x = 299,087.54/606.20
  6. Step 6: Final answer
    x = 493.39

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.